A landform is a natural feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Typical landforms include hills, mountains, plateaus, canyons, valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins
A landform has a characteristic unity or coherence that distinguishes it from its surroundings. Each has its own terminology, e.g. landforms near flowing water (fluvial landforms), or massive landforms such as mountains, for example.
